G. K. Carpenter

Fred Gilhuly

H. L. Henry

Henry worked at the 300 Area at Hanford during the Manhattan Project.

Ben Benjamin

Ben Benjamin was a sergeant in the Special Engineer Detachment during the Manhattan Project. He had previously worked in industry making lenses and prisms, and was assigned to the Optics Group to help with photographing the Trinity Test.

J. J. Cunningham

Cunningham worked in the United States Engineer District Office.